Japan’s GMO Group has issued a stark warning to its customers, urging them to disconnect their systems from the internet and shut down their computers immediately due to a potential ransomware attack.

The threat comes after a breach of GMO’s Onamae Desktop Cloud service, which was discovered earlier this week. A malicious actor who gained access to the system has threatened to launch a ransomware attack today.

GMO Group, one of Japan’s largest IT service providers, took swift action upon discovering the breach. The company promptly notified affected customers and began investigating the incident.

The Onamae Desktop Cloud service provides remote desktop access for users. Breaches like this can have serious consequences, including unauthorized access to sensitive data and potential financial losses.

GMO Group’s warning highlights the importance of cybersecurity in today’s digital age. As more businesses move online, the risk of cyber threats increases.

Customers are advised to take immediate action by disconnecting their systems from the internet and shutting down their computers until further notice. GMO Group will provide updates on the situation as more information becomes available.

The incident serves as a reminder for individuals and organizations alike to prioritize cybersecurity measures, including regular software updates, strong passwords, and antivirus protection.